A cellular network or mobile network is a radio network distributed over land areas called cells, each served by at least one fixed-location transceiver, known as a cell site or base station. In a cellular network, each cell uses a different set of frequencies from neighboring cells, to avoid ...

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11 views

Tor Bot with Selective Routing

I've installed the TorBot application (mostly for the use of ChatSecure), and I've enabled selective routing for applications I want to use For (Onion routing?), such as Facebook, ChatSecure etc. ...
0
votes
0answers
24 views

Note 5 reading only one SIM card

My Samsung Galaxy Note 5 was working fine until one day when I used a new SIM card for one mobile network instead of the one I lost. That SIM wasn't recognized by the phone and it was showing ...
0
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1answer
22 views

Is there a way to determine what mobile network frequency band is in use?

I use a Nexus 5X on T-Mobile's network in the United States. Is there a way to tell what frequency band is in use when using LTE? A Sony Xperia Z3 compact also on T-Mobile is unable to use LTE in many ...
4
votes
0answers
105 views

Aggregating two 4G/3G data links from 2 different sims?

Having two 4G capable sims -from truely two different operators (no virtual carriers at all)- and a Dual Active sim phone (Zenfone 2 Laser), I want to do true load balancing with a 1 sim + 1 sim 4G/3G ...
0
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0answers
71 views

LG Leon H320 error “The network is unavailable!”

My LG Leon is running Android 5.0.1 and shows every 30 min to 1 hr the above mentioned error without any particular reason. I'm just browsing the internet or running some app, and then suddenly a ...
0
votes
1answer
73 views

Nexus 9 - How do I change the cellular band?

I've got an international edition 32GB Nexus 9 LTE. It appears to be unable to connect to 3.5G / HSPA+ networks, as a result, I get poor data speeds (3G is pretty slow for my requirements). I've got ...
1
vote
1answer
58 views

Forward tethered device?

Alright, so I have a raspberry pi (192.168.42.53 on rndis0) that is tethered to an android tablet to access the internet. The tablet is connected to my home LAN via WiFi (on wlan0). How do I forward ...
2
votes
1answer
84 views

Can cellular network providers detect the phone model/make when their sim is activated?

When the user inserts the sim card and activates, can the cellular network provider detect what phone the user uses? Like say Motorola Droid. Or at least the phone is a smartphone or not?
1
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0answers
67 views

Dual active LTE + multipath tcp + VPN

I travel a lot and having a constantly reliable Internet connection is high on my priority list. Tethering from my phone is often times spotty. Different carriers are good in some areas and poor in ...
2
votes
0answers
35 views

Nexus 4 3G not working

The phone is running AOSP Marshmallow, it is rooted and has Xposed installed. Mobile operator is Latvian Mobile Phone with working data plan. I can send and receive calls and texts and use WiFi. So ...
0
votes
0answers
105 views

Why is my LG G3 receiving text messages with the wrong words?

I am using the LG G3 on AT&T's network. When receiving messages from a Galaxy S5, also on AT&T's network, the last part of the message shows words that the other person did not send to me. If ...
0
votes
2answers
108 views

Will it work if I set up a http/ssh/ftp server on my android phone using the cellular mobile network?

I can set up a ssh server on my android phone, by running SSH Server by Ice Code App on my Android 4.4.2 phone over my home WiFi network. So my laptop can access the my phone via ssh in the same WiFi ...
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votes
1answer
1k views

Will my new Xiaomi RedMi Note 2 prime work for LTE network?

I just bought this smartphone, and I am confused if it will work in my area and if it will work for 4G and LTE. I called the support of T-Mobile, and they said if it configured correctlly, it will ...
0
votes
0answers
37 views

Experiencing frequent network[operator] disconnects on Nexus 4

I frequently find my nexus 4 showing "Emergency calls only" as the network gets disconnected, and 90% of the times it does not automatically connects. Whenever i am travelling, this problem is more ...
0
votes
1answer
170 views

LG G2 not picking 3G and GSM Signals

I just bought an LG G2 32GB Version from China. The problem is it does not pick up any network connection, it keeps saying Searching for service. I just noticed the box is written 100%LTE. Is there ...
-1
votes
1answer
410 views

Is it possible to adblock while on mobile data?

I can use AdBlock Plus to block ads on wifi. Is there a way to do it while on mobile data? I'd like to use it in Chrome, if possible.
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votes
1answer
572 views

Mobile network sign disappears, replaced by “stop sign” icon

I am using Samsung Galaxy Note 10.1 N8000 device. I have SIM card inserted for mobile data usage. First time, it is working as I captured status bar image as shown with mobile data sign :- but ...
1
vote
0answers
198 views

GPS is not getting fix signal

I have a couple devices (Moto e XT1021, Moto e 2nd gen). Suddenly the app running on these devices stopped working, due the device stop receiving gps changes updates. I did some research and tests, ...
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0answers
149 views

Galaxy s5 network mode disabled

I recently bought a Samsung Galaxy S5 (SM-G900R7) from Swappa.com and as per the seller the phone has a clean IMEI (which is true as per multiple website checks) and is unlocked**(I have a doubt ...
1
vote
0answers
151 views

“com.android.phone has stopped” after reboot, cured by changing Preferred Network — how to make permanent

Phone info: "Google Play Edition" Galaxy S4 - GT-I9505ZWG Android 5.1, build number LMY470.S008.150802 AT&T, Philadelphia After rebooting the phone, I get the "com.android.phone has stopped" ...
0
votes
0answers
216 views

What is my cellular network connection status?

I am using wifi and have disabled data on Android 4.4.2. My phone status shows that my mobile network type is somtimes 1xRT and somtimes EVDO but not both, while both voice and data are in service. ...
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votes
0answers
192 views

“No Service” after device shutdown - software or hardware issue?

I own an LG P880 (Optimus 4X HD) device running cm-11-20150824-NIGHTLY, which was installed about a month ago and worked fine so far. Followed by low battery the device was automatically turned off. ...
0
votes
0answers
63 views

Port forward in external ip

How to forward ports in external ip. I tried port forwarder but it forwards my internal ip ports like 10.xxx.xx.xxx to 192.168.0.1 How to actually forward ports To my external ip? so that i could ...
1
vote
0answers
81 views

Private communication over wifi but internet over 3G

I have a raspberry pi which creates an WiFi hotspot and I want my android app to communicate with the pi over that connection. The big problem now is that the pi has no internet access so I would like ...
1
vote
1answer
383 views

Cannot connect to Network - EMERGENCY CALLS ONLY

I was trying out some ROMs which I downloaded from needrom.com. At first it was fine. Then when I flashed a particular ROM, I started getting "INVALID IMEI" and could not connect to the network ...
0
votes
0answers
512 views

Can't connect to mobile network on Sony Xperia Z Ultra

Device: Sony Xperia Z Ultra Carrier: The Peoples Operator (Same issue when tested with EE as well) Android Version: 5.0 Lolipop I recently lost the SIM card tray for my device, and Sony sent me out ...
0
votes
0answers
46 views

Issues when registering to mobile network abroad

I have a Motorola Moto G with Android 5.02, and a subscription for Vodafone and everything is working fine when I'm connecting to the mobile network in my country (Romania), but when I travel abroad I ...
0
votes
0answers
35 views

Samsung Galaxy Nexus running Android 4.3 shows “no network” after doing factory reset

I got my Samsung Galaxy Nexus with Android 4.3 from my mum, just yesterday. I factory reset it before using it and afterwards I inserted my SIM card and it shows "no network ". I manually searched, ...
0
votes
0answers
111 views

Data network problem: Chrome timeouts while Twitter fine

My OnePlus One cellphone works fine with WiFi. Android 5.0.2, OxigenOS 1.0.0. All apps are updated. However, when on data (3G or LTE), Chrome, Google Play and a few other apps can not communicate ...
4
votes
1answer
4k views

Power Efficiency: Network mode 4G LTE vs 3G GSM/WCDMA?

Which network mode is more power efficient: LTE 4G or GSM 3G? I assume using a 4G network uses more power even if you don't use the data connection, as from the little I understand about mobile ...
1
vote
1answer
195 views

What's the complete map from letter to mobile network type?

I was wondering about what all letters mean. Specifically the "R" that I'm currently on. I found this summary by some provider, but it doesn't contain the R-symbol that I'm on right now. These are ...
0
votes
0answers
435 views

Micromax A106-Network Issue after System update

Mobile Model- Micromax A106 I am facing some problem when I try to connect Internet after System update. When I switchon the Data Connection, the internet Symbol "E" is not appeared at the top and the ...
3
votes
2answers
536 views

Why does my phone say I am roaming when connected to my “home” network?

I recently got a new phone, the Elephone P7000 and it runs stock android 5.0. Everything seems to work perfectly apart from the fact that most of the time the top status bar says I am roaming. When I ...
0
votes
1answer
176 views

Make phone running Android 2.3.3 re-download configuration settings from ISP

When I first inserted my SIM into my phone, it prompted to download configuration settings for things such as Data, MMS etc... It worked fine for about a year but I have started having problems such ...
1
vote
1answer
18k views

Moto G2 internet connection switch from 3G to 2G network

I am using Moto G2 with Lollipop 5.0.2. And I am having this trouble that whenever I am using 3G service, it automatically switches to 2G and in between it gets back to 3G. This keeps on going and ...
2
votes
1answer
2k views

Change mobile network DNS on Lollipop and up

Ok, this is a constantly asked question, how to change mobile network DNS. But in different Android version, you will get different method. So this is the reason I ask this. I have already known a ...
0
votes
1answer
3k views

network problem after update in lollypop of Micromax unite 2

I updated my unite 2 4gb from service Center in Lollypop. After then its problem create no network some time . Then its fixe when I on flight mode and off it or restarting phone. But after some time ...
0
votes
2answers
8k views

Micromax Unite 2 A106 updated to Lollipop version and no network or sim detected

Using Micromax Unite 2 A106, updated to latest version of lollipop, after finalization and restarting my phone is not able to detect any SIM/network. Also no display of selection of Mobile network is ...
4
votes
2answers
4k views

How to change “Preferred Network Mode” using adb without reboot?

I'm trying to change my phone's (CM 12, Stock 4.2, both rooted) preferred network mode from "GSM/WCDMA" (0) to "WCDMA only" (2) and vice versa (there can be other modes too), using command-line only. ...
0
votes
0answers
36 views

Traffic logs on android

Very noob question here, but I was wondering if there is a simple way to look at how much traffic I've sent or received on android (not rooted, no specialist apps installed for it). I burned through ...
0
votes
1answer
246 views

How can I record mobile network traffic?

I need to record edge/3g mobile traffic in pcap file. I can't find any working app for this. How can I do this? Samsung Galaxy s3, root, cyanogenmod11.
1
vote
1answer
634 views

What range of tcp buffer size do you suggest for slow and fast networks?

If you search the net, you come across with ranges like these that claim would enhance your net throughput: net.tcp.buffersize.default=4096,87380,256960,4096, 16384,256960 ...
1
vote
0answers
1k views

How to lock network operator or to never go on roaming, or get out of roaming as soon as possible

I work really close to a country border, and I do NOT want my phone to connect to other operators than mine. Sometimes the operator from my home country will be unavailable for a brief period of ...
1
vote
2answers
2k views

Can Telegram notifications be disabled?

Can you disable Telegram notifications somehow? I am seeing a huge battery consumption since last few weeks and after upgrading to Android 5.0.2. After one day of use battery app is reporting that ...
1
vote
0answers
46 views

How does Android perform Data-Wifi Switch

I am trying to learn from Android source on Data-Wifi automatic switch. The closest I can get is DataCommand and WifiCommand, they seem to switch network preference (through ConnectivityManager), by ...
0
votes
1answer
103 views

Network App Restriction

I recently bought a japanese cellphone (Fujitsu F-06e NX). It came with some really cool apps but most of them have limited functionality due to network work restrictions (Phone must be on docomo ntt ...
0
votes
1answer
279 views

How to lock android sim network?

I want to manually lock the android sim card network is that possible and how to do it?
1
vote
0answers
226 views

How can I keep my mobile data connection up when establishing a non-internet capable WiFi connection?

I'm using a Raspberry Pi to stream music wirelessly inside my car. The Pi has a wireless network without real a exit to the outside world. I want to connect to that 'internet-less' network and still ...
1
vote
0answers
1k views

Checking for SIM card defects

Short question: How can I obtain detailed information about my SIM card, using Android apps and/or adb (possibly root)? I'd like to diagnose mobile data connection problems possibly caused by SIM ...
1
vote
0answers
2k views

Lollipop update on MotoG causing no service for sim card

I was using Moto G(1st gen) phone for the past 1 year. I was using 2 sims and I didnt face any problem for 1 year. After getting lollipop update, I frequently get 'no service' for one of my sim. ...